Q.
The head of cockroach is ___(A)____ and is formed by the fusion of ___(B)____ embryonic segments.
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a
1
b
2
c
3
d
4
answer is B.
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Detailed Solution
The head of cockroach is triangular and lies anteriorly at right angles to the longitudinal body axis (hypognathous). It is formed by the fusion of six embryonic segments.
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